The Samsung S3C24XX range of ARM9 System-on-Chip CPUs are supported by the 's3c2410' architecture of ARM Linux. Currently the S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443 and S3C2450 devices are supported.
Support for the S3C2400 and S3C24A0 series was never completed and the corresponding code has been removed after a while. If someone wishes to revive this effort, partial support can be retrieved from earlier Linux versions.
The S3C2416 and S3C2450 devices are very similar and S3C2450 support is included under the arch/arm/mach-s3c2416 directory. Note, whilst core support for these SoCs is in, work on some of the extra peripherals and extra interrupts is still ongoing.